TY - JOUR
T1 - Mesoporous platinum hosts for electrode vertical bar liquid vertical bar liquid - Triple phase boundary redox systems
AU - Ghanem, M A
AU - Marken, F
N1 - ID number: ISI:000233720500027
PY - 2005
Y1 - 2005
N2 - Mesoporous metal hosts are attractive electrode materials for complex electrode reactions, for example those involving a system of two immiscible liquids. Here we show that a solution of tetraohenylporphyrianto manganese (MnTPP) in 4-(3-phenylpropyl)-pyridine (PPP) organic liquid can be immobilized into mesoporous platinum thin films electrodeposited from a liquid crystalline template. When immersed in an aqueous solution, the organic liquid remains immobilized inside the mesoporous platinum framework. Well-defined, stable, and reproducible ion transfer voltammograms are recorded. The effects of mesoporous platinum membrane thickness (volume), scan rate, and the type of aqueous electrolyte anion (for Cl-, PF6-, ClO4- CN-, SCN- and NO3-) are investigated. Mesoporous platinum is proposed as a very effective electrode material for liquid/liquid anion sensing and for other applications of electrochemically driven liquid/liquid redox systems. (c) 2005 Elsevier B.V. All rights reserved.
AB - Mesoporous metal hosts are attractive electrode materials for complex electrode reactions, for example those involving a system of two immiscible liquids. Here we show that a solution of tetraohenylporphyrianto manganese (MnTPP) in 4-(3-phenylpropyl)-pyridine (PPP) organic liquid can be immobilized into mesoporous platinum thin films electrodeposited from a liquid crystalline template. When immersed in an aqueous solution, the organic liquid remains immobilized inside the mesoporous platinum framework. Well-defined, stable, and reproducible ion transfer voltammograms are recorded. The effects of mesoporous platinum membrane thickness (volume), scan rate, and the type of aqueous electrolyte anion (for Cl-, PF6-, ClO4- CN-, SCN- and NO3-) are investigated. Mesoporous platinum is proposed as a very effective electrode material for liquid/liquid anion sensing and for other applications of electrochemically driven liquid/liquid redox systems. (c) 2005 Elsevier B.V. All rights reserved.
U2 - 10.1016/j.elecom.2005.09.013
DO - 10.1016/j.elecom.2005.09.013
M3 - Article
SN - 1388-2481
VL - 7
SP - 1333
EP - 1339
JO - Electrochemistry Communications
JF - Electrochemistry Communications
IS - 12
ER -